mdBook/book-example/src/format/config.md

# Configuration

You can configure the parameters for your book in the ***book.toml*** file.

We encourage using the TOML format, but JSON is also recognized and parsed.

Here is an example of what a ***book.toml*** file might look like:

```toml
title = "Example book"
author = "Name"
description = "The example book covers examples."
dest = "output/my-book"
```

#### Supported variables

If relative paths are given, they will be relative to the book's root, i.e. the
parent directory of the source directory.

- **title:** The title of the book.
- **author:** The author of the book.
- **description:** The description, which is added as meta in the html head of each page.
- **src:** The path to the book's source files (chapters in Markdown, SUMMARY.md, etc.). Defaults to `root/src`.
- **dest:** The path to the directory where you want your book to be rendered. Defaults to `root/book`.
- **theme_path:** The path to a custom theme directory. Defaults to `root/theme`.
- **google_analytics_id:** If included, google analytics will be added to each page and use the provided ID.

***note:*** *the supported configurable parameters are scarce at the moment, but more will be added in the future*